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The Collaborative International Dictionary of English v.0.48 (gcide)

Nitroglycerin \Ni`tro*glyc"er*in\, Nitroglycerine
\Ni`tro*glyc"er*ine\(n[imac]`tr[-o]*gl[i^]s"[~e]r*[i^]n), n.
[Nitro- glycerin.] (Chem.)
A liquid appearing like a heavy oil, colorless or yellowish,
and consisting of a mixture of several glycerin salts of
nitric acid, and hence more properly called {glycerin
nitrate}; also called {trinitroglycerin} and {glyceryl
trinitrate}. It is made by the action of nitric acid on
glycerin in the presence of sulphuric acid. It is extremely
unstable and terribly explosive. A very dilute solution is
used in medicine as a neurotic under the name of {glonion}.
[Written also {nitroglycerine}.]
[1913 Webster]

Note: A great number of explosive compounds have been
produced by mixing nitroglycerin with different
substances; as, dynamite, or giant powder,
nitroglycerin mixed with siliceous earth;
lithofracteur, nitroglycerin with gunpowder, or with
sawdust and nitrate of sodium or barium; Colonia
powder, gunpowder with nitroglycerin; dualin,
nitroglycerin with sawdust, or with sawdust and nitrate
of potassium and some other substances; lignose, wood
fiber and nitroglycerin.
[1913 Webster]


Explosive \Ex*plo"sive\, n.
1. An explosive agent; a compound or mixture susceptible of a
rapid chemical reaction, as {gunpowder}, {TNT},
{dynamite}, or {nitro-glycerine}.
[1913 Webster PJC]

2. A sound produced by an explosive impulse of the breath;
(Phonetics) one of consonants p, b, t, d, k, g, which are
sounded with a sort of explosive power of voice.

Note: [See Guide to Pronunciation, [root] 155-7, 184.]
[1913 Webster]